TY - JOUR AU - DeQin Qiu AU - Cong Lv TI - Riemann--Hilbert approach and $N$-soliton solutions of the~generalized mixed nonlinear Schr\"odinger equation with nonzero boundary conditions JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2021 SP - 274 EP - 304 VL - 209 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2021_209_2_a4/ LA - ru ID - TMF_2021_209_2_a4 ER -